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Gold/Mining/Energy : KOB.TO - East Lost Hills & GSJB joint venture -- Ignore unavailable to you. Want to Upgrade?

To: Dave E. who wrote (3537)	7/16/1999 9:56:00 AM
From: Check	Read Replies (2) \| Respond to of 15703

Hi Dave, <<If there is anywhere on the web you know of to further my education I would welcome the info.>> Ultra (UP-TSE) has a pretty good chapter at their site on the basics of well completion. Have a good weekend and don't swelter too much. <<http://www.ultrapetroleum.com/hyne20/h20p363.html ultrapetroleum.com

To: Dave E. who wrote (3537)	7/16/1999 1:34:00 PM
From: grayhairs	Read Replies (2) \| Respond to of 15703

Hi Dave, <With 32C muggy degrees today here I envy you (but not too much)> Well, with 32F degrees here yesterday, I envy you (but not too much) !! I live in South Calgary and we had no snow here, just a couple more inches of rain. In the very early morning yesterday there apparently were a few flakes falling on my buddies in the northwest and more elevated part of the City (the 5th time this century that Calgary has had snow in July) !!!! Oh well, today is a beautiful sunny and bright day so I'll be on the links again this p.m. !! Once the hole is cased and cemented to the top of the Temblor they will drill out the casing shoe and then proceed to drill towards their projected total depth (TD). At ~100 feet of penetration per day that'll take about ~20 days of drilling. Once they reach TD, they will run their logging tools which provide an indication of porosity levels and pay thicknesses, and fluid saturations. I seriously doubt that they will run any drill stem tests (DST) as it is my opinion that they will not want to risk "losing the hole\well" because of a possible stuck tool. They may consider running one DST with their test packer landed in the casing, but they will only make that call after having reviewed the logging data. If they test, allow 5 days for that. Then they will have to run their small diameter (5" ??) production casing to TD and cement it. Allow 5-7 days for that. Then I believe ELK will relinquish operatorship to BKP. At that point, BKP and all partners would review and analyze all available well information and determine how they wish to complete and test the well. Upon reaching agreement, BKP will engineer and program the completion activity, cash call partners, procur the requisite services and any special high pressure high temperature equipment required. Allow at least 10 days just for these "details". I am not informed as to the availability of service rigs in the area and in particular of their capacity to work at depths of 18-20,000 feet. But, assuming that appropriate service rigs are readily available, the drilling rig will likely be released and moved off location (presumably to the next development well location or possibly to one of the other GSJBJV prospects) as soon as the production liner\casing is cemented. A smaller and less costly service rig would be moved on to the location and rigged up in preparation for the completion operations on the well. The main steps in a conventional completion would be: 1) clean out the casing and wellbore. 2) install a tubing work string and packer in the well. 3) perforate the casing at the deepest interval which from log data appears to be hydrocarbon bearing. 4) measure zone pressure and carry out a "brief" flow test of the perforated interval to determine\confirm fluid content and productivity. 5) If productivity does not meet expectations, stimulate the zone either with an acid treatment or through a hydraulic fracture stimulation of the zone. 6) If the zone required stimulation, then repeat the flow test. 7) If necessary, cement off and plug the perforations. 8) set a retrievable bridge plug above the zone just tested so as to enable the segregated testing of the next higher zone in the well. 9) Repeat steps 3 to 8 for the next zone in the well. 10) Remove all retrievable bridge plugs installed in the wellbore and flow test all zones in a single combined flow test. (Not in Alberta !!!) 11) conduct an "extended" flow test and monitor not only the flowing pressure but also the build up pressure behavior after the well is shut in. I must emphasize that the above "program" is a gross simplification. It is incomplete, inaccurate, unsafe and would cost a BKP completions engineer his job if he actually proposed same to his boss !! I attempt only to provide you with a very basic understanding of why this well will not be completed in the next few days. Not knowing precisely what will be encountered by the well, it is impossible to project how long the completion and testing will take. In the very simplistic situation of a single zone not requiring any extensive stimulation, allow a minimum of 30 days. For each additional zone to be tested, add 10 days. For each stimulation treatment required, add 3 days. Also, do keep in mind that chit happens in the oil patch. And, also remember that when you are drilling deep, you can get in deep chit !! One would be prudent to assume that it'll take at least a few days between now and completion of this well, just to get the chit off our boots !! So, as I have said before, YAWN and ZZZZZZZZZzzzzzzzzz !!! JMHOBWDIK. Later, grayhairs P.S.--The pressure of the reservoir is controlled by a weighted fluid\mud column. For example a 17,000 foot column with a density of 0.9 psi per foot will hold back a reservoir pressure of 15,300 psi. Now you do want to be awful damn sure that the mud column does not get contaminated with water (.433 psi/ft) or oil (say .32 psi/ft) or natural gas ("diddly squat" psi/ft) or you will see another rig crew heading for cover (if the BOP's\casing flange\casing string fail). The men working below 17,500 feet on this well have got some real *alls !!! After all, as the well drills deeper the pressure may get even higher than has already been experienced. Good luck to them all.